BioGuard Zero Phos quickly reduces phosphates to near zero levels in just 24 hours. Phosphates can constantly be added to your pool water through source water, ground runoff and weather; ultimately, creating poor water conditions. BioGuard Zero Phos solves these problems.

Before Applying

Make sure all pool equipment is working properly, including, pump, filter, skimmer and heater.

Directions

1. Backwash and rinse filter according to the manufacter's instructions
2. Apply BioGuard Zero Phos directly to the skimmer or around the edges of the pool according to the chart below. For pools less than 10,000 gallons, do not exceed 16 fl oz
3. Allow pump and filter to run continously for 24-48* hours. Poo water may cloud upon addition, but will celar withing 48 hours
4. After 48 hours, backwash and rinse the filter according to manufacturer's instructions.

*If the filter pressure increases 8-10 psi above normal operating pressure, backwash and rinse filter accordingly